https://cve.radiocsirt.org/rss/recent/all/10 Most recent entries from all 2026-10-03T02:37:00.887819+00:00 Vulnerability-Lookup csirt@opendfir.org python-feedgen Contains only the most 10 recent entries. https://cve.radiocsirt.org/vuln/cve-2026-34052 CVE-2026-34052 — LTI JupyterHub Authenticator: Unbounded Memory Growth via Nonce Storage (Denial of Service) 2026-10-03T02:37:00.918890+00:00

Affected: jupyterhub ltiauthenticator

LTI JupyterHub Authenticator is a JupyterHub authenticator for LTI. Prior to version 1.6.3, the LTI 1.1 validator stores OAuth nonces in a class-level dictionary that grows without bounds. Nonces are added before signature validation, so an attacker with knowledge of a valid consumer key can send repeated requests with unique nonces to gradually exhaust server memory, causing a denial of service. This issue has been patched in version 1.6.3.

 https://cve.radiocsirt.org/vuln/ghsa-8mxq-7xr7-2fxj GHSA-8mxq-7xr7-2fxj — LTI JupyterHub Authenticator: Unbounded Memory Growth via Nonce Storage (Denial of Service) 2026-10-03T02:37:00.918954+00:00

Affected: PyPI: jupyterhub-ltiauthenticator

## Summary

The LTI 1.1 validator stores OAuth nonces in a class-level dictionary that grows without bounds. Nonces are added before signature validation, so an attacker with knowledge of a valid consumer key can send repeated requests with unique nonces to gradually exhaust server memory, causing a denial of service.

## Patches

- upgrade jupyterhub-litauthenticator to 1.6.3